War of the Spark

Bulwark Giant | Creature | Giant Soldier | When Bulwark Giant enters the battlefield, you gain 5 life. | Victor Adame Minguez

Kiora's Dambreaker | Creature | Leviathan | When Kiora's Dambreaker enters the battlefield, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) | Mathias Kollros

Tithebearer Giant | Creature | Giant Warrior | When Tithebearer Giant enters the battlefield, you draw a card and you lose 1 life. | Wisnu Tan

Invading Manticore | Creature | Zombie Manticore | When Invading Manticore enters the battlefield, amass 2. (Put two +1/+1 counters on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.) | Jehan Choo

Primordial Wurm | Creature | Wurm | | Svetlin Velinov